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I want to transfer files from a server here in US to another one in China, and I wonder what's the best way to do it? Is there anything special needed to be considered compared to other file transfer (e.g. within a country)?

Also, does the optimal approach depend on the file size? Say, a 1 TB file vs. a 10 KB text file?


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closed as off-topic by Iain, EEAA, MadHatter, ceejayoz, HopelessN00b May 5 '14 at 17:26

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The Time taken will be different. – Iain May 5 '14 at 15:41
@lain, of course. But what I meant is whether the optimal approach would be different for different file sizes. – chaohuang May 5 '14 at 15:47
Why don't you spend 15 minutes benchmarking and see? – ceejayoz May 5 '14 at 15:56
@ceejayoz could you give me some options? Thanks. – chaohuang May 5 '14 at 15:58
FTPing a big file (say 1GB) will be faster than sending 1,000,000 x 1kB files. If it gets into 100's of GB, DHL is faster still. – xcxc May 5 '14 at 16:20

Depends on what you want to do.It's almost always faster to copy a single 10 gig file than 10 gig with 1000's of small files (because of connections etc) although you could speed up the small file size by using concurrent connections.

SFTP/SCP are good bets for general use. Rsync and Robocopy (windows only) are more specific tools.Torrents are a very efficient way to transmit large files to multiple systems as long as they all trust each other.

If you have a lot of files and are only updating some of them then a differential copy can be a lot more efficient.

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